EP 0064518 A4 19830304 - Method of casting a support tooling element for an extrusion die.
Title (en)
Method of casting a support tooling element for an extrusion die.
Title (de)
Giessverfahren für ein Stützgerüst einer Strangpressmatrize.
Title (fr)
Procédé pour couler un élément de support d'outillage pour une matrice d'extrusion.
Publication
Application
Priority
US 20573180 A 19801110
Abstract (en)
[origin: WO8201675A1] A process for preparation of support tooling for extruding dies is described in which a substantial reduction in machining is experienced by utilizing a pattern destroying precision casting system in which the pattern is adjusted to shrinkage and provided with a die orifice opening staged up in size to suit the particular support role of the tooling as in a backer or bolster. This is significant because such support elements are regarded as one-of-a-kind structures. Finished machining and treatment requires minimal time and at substantial energy reduction. The pattern is prepared from a destructible or vaporizable plastic material replaced by the molten metal conforming to the mold configuration.
IPC 1-7
IPC 8 full level
B22C 9/04 (2006.01); B23P 15/24 (2006.01); B21C 25/10 (2006.01)
CPC (source: EP US)
B22C 9/046 (2013.01 - EP US); B23P 15/24 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR NL
DOCDB simple family (publication)
WO 8201675 A1 19820527; BE 891066 A 19820510; BR 8108864 A 19821013; CA 1169272 A 19840619; DK 277982 A 19820621; EP 0064518 A1 19821117; EP 0064518 A4 19830304; ES 507490 A0 19820901; ES 8206235 A1 19820901; GB 2098519 A 19821124; GB 2098519 B 19840502; IT 1168063 B 19870520; IT 8124969 A0 19811110; JP S57501947 A 19821104; US 4397080 A 19830809
DOCDB simple family (application)
US 8101400 W 19811016; BE 206501 A 19811110; BR 8108864 A 19811016; CA 389405 A 19811104; DK 277982 A 19820621; EP 81903026 A 19811016; ES 507490 A 19811110; GB 8217892 A 19811016; IT 2496981 A 19811110; JP 50356881 A 19811016; US 20573180 A 19801110